<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>8 模板语法-指令</title>
    <script src="js/vue.global.js"></script>
</head>
<body>
<div id="app">

</div>

<script>
    const app = {
        data() {
            return {
                name: 'Google',
                url: 'http://www.google.com'
            }
        },
        computed: {
            site: {
                // getter
                get: function () {
                    return this.name + ' ' + this.url
                },
                // setter
                set: function (newValue) {
                    var names = newValue.split(' ')
                    this.name = names[0]
                    this.url = names[names.length - 1]
                }
            }
        }
    }
    vm = Vue.createApp(app).mount('#app')
    document.write('name: ' + vm.name);
    document.write('<br>');
    document.write('url: ' + vm.url);
    document.write('<br>------ 更新数据 ------<br>');
    // 调用 setter， vm.name 和 vm.url 也会被对应更新
    vm.site = '菜鸟教程 https://www.runoob.com';
    document.write('name: ' + vm.name);
    document.write('<br>');
    document.write('url: ' + vm.url);
</script>
</body>
</html>